The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 1996
Filed:
Jul. 08, 1994
Applicant:
Inventors:
Alan Sellars, South Humberside, GB;
Michael C Quigley, Meriden, GB;
Assignee:
Courtaulds Fibres (Holdings) Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; D01F / ; D01F / ;
U.S. Cl.
CPC ...
264 38 ; 159-5 ; 264 401 ; 264408 ; 264 406 ; 264187 ; 264203 ; 425 71 ; 425135 ; 425143 ; 425217 ; 4253822 ; 425404 ; 425445 ;
Abstract
Continuous elongate members such as filaments are produced by forming a hot dope of cellulose, amine oxide and water, extruding the dope through a die assembly and precipitating the cellulose to form the bodies and maintaining the concentration of the dope at a predetermined value by monitoring the refractive index of the dope before it is extruded.